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MissPhiladelphia

O2 and F2 are both diatomic in nature and both exist as gas at normal temperature and pressure. Since Fluorine gas is formed from noble element fluorine it is less reactive while Oxygen is more reactive than fluorine gas and the same conditions.

Dejanras

1) similarity:

1. diatomic molecules.

2. nonpolar covalent bond.

3. gaseus state at room temperature.

4. very reactive, with high electronegativity.

2) contrast:

1. fluorine has single bond, oxygen has double bond.

2. fluorine is pale yellow, oxygen is colorless gas.

3. fluorine is highly toxic, oxygen is not.

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